Samuel l



(No Model.)

-S; L. HI-LL. STBAM GENERATOR.

Patented Se t. 4, `1883. A

U U U U zu U fl.

sTEAM-eENERAToR.

srncIFIcA'rroN forming part of Letters Patent No. 284,204, aaa-d september 4,`1`sse.

i Application filed February 13, 1883. (No modem To all whom i may concern:

Be it known that I, SAMUEL L.' H1LL,of the city of Brooklyn, countyof Kings, and State, of New'York, have invented certain new and useful"mprovements in Steam Generators or `Boilers, of Which the following is a specification.

l This invention pertains to the class of steamboilers or steam-generators that is provided with transverse tubesfor dividing the water and conducting it to and fro over the grates and heating-surfaces, and for which in certain forms two patents, Nos. 250,1456 and`261`,348,

have already been issued to me. e

This invention consists in certain additional improvements upon the inventi ons therein set` forth; and the chief features of invention in this application for a patent consist in proo viding a single cylinder or drum for supplying the feed-water to the alternating and transe verse tubes, and locating said cylinder below the level of the grates and-to the rear of the bridge-wall, and below the boiler proper, so

that it serves as a receiver -for the mud or insoluble matters, and from which they 'may be blown off, as will hereinafter appear.

`In ,the drawings, Figure l is a side elevation of the apparatus and section of the front and bridge wall. Fig. 2 is a plan of the parts below the boiler proper. Fig. 3 is a transverse section through one of the transverse feedtubes-of the boiler', s

The main boiler is shownA at A, consisting of a large horizontal cylinder suspended by braokets on the furnace-wall, and. provided with flue-tubes in the form of the ordinary tubularboiler, one end of which extends over i the grate at B, and the rear end over the heating-chamber G, between the furnace-walls D 'and E, in the usual manner.

In the last one of my previous patents the feed-water was supplied to two small oylins ders located in recesses in the side walls of the a furnace, and extending lengthwise along'the inside, and upon these the transverse supply directly'under the boiler; proper, and from` this small fecd-pipes G lead to the lower ends of the transverse and alternating pipes or tubes H, and the feed-water in this case is sup-` plied to the rear end of the cylinder jlF, which is the coldest point `in the structure, and is thence forcedforward to supply the several sections H through said small tubes G, already mentioned. There is also-a large stand-pipe, K, extending down directly from near the rear end of the boiler proper to the feed-cylinder F, which not only'serves as a means for circulating the water between the boiler and the drum E, Vbut permits the mud or insoluble matter to settle down into thesaid drum, and from which they may be blown or drawn off at the cock L in the usual` manner.

In this improvement I prefer to make the transverse conduits H of tubular form and S- shaped in the direction of their length, so that their upper ends will partially Surround the boiler proper, and then extend downward and transversely in nearly a horizontal position over the grates and heating-chamber, :and then curve down in a vertical direction to connect with shoes at M, and which serve as connections for the small feed-tubes G, leading from the `drum F. The upper ends of these curved tubes H are suspended to elbows N, that are fastened upon the sides of the boiler-cylinder A, and I prefer to use the Swivel-connections shown in my lastpatent, as they easily compensate for any expansion and contraction of the various parts; but as all the transverse descend easily down the verticalpipe K, and i then again through the drum or cylinder F.

Instead of the s-shaped tubes H, straight tubes may be suspended vertically from the elbows on theI sides of the boiler, and these `may be connected by transverse tubesorpipes slightly inclined over the grates and furnace= I blown off; and a second important feature is that Vthe feed Water is greatly distributed through the heating-space before it enters the boiler proper; hence great economy in fuel; and, third, the arrangement of the several parts permits the freest expansion and contraction \without danger of leaking.

I am aware that a steam-generator has been composed of upper and lower cylinders connected along their length by a series of alternating transverse tubes, and at one end by a pipe for producing circulation, and such, therefore, I do not broadly claim; but

What I do claim as my invention is-v 1. In a steam-generator, the feed-water cylinder F, located-below the level of the gratebars in rear of the bridge-wall, and provided at its rear end with a pipe, O, for connecting With the feed-Water supply, combined With the v boiler A, the series of alternating transverse 2. In a steamfgenerator, the feed-Water cyl-`` inder F, located below the level of the grate-v bars in rear of the bridge-wall, and provided at its rear end with a pipe, O, for connecting with the feed-water supply, combined with the boiler A, the stand-pipe K, extending from near the rear end of the boiler to the cylinder, the transverse alternating tubes H, suspended from the boiler, and the pipes G, connecting the lower ends of the tubes with the cylinder,

4substantially as described.

3. In a steam-generator, the feed-water cylinder F, located below the level of thegratebars in'rear of the bridge-Wall, and provided with the blow-off cock L, and a pipe, O, at its rear end for connecting with the feed-water supply, combined with the boiler A, the' standpipe K, extending from the rear portion of the boiler to the cylinder, the transverse' alternating tubes H, suspended from the boiler, some of Which cross-over the grate-bars, and pipes G, connecting the lower ends of the tubes With the cylinder, substantially as described.-

Witness my hand and seal in the presence of two subsoribing witnesses.

sAMUEL L. HILL. [ne] \Vitnessesz I EUGENE N. ELIo'r, HAnRY EDwARDs. 

